The poem The Thought Foxby Ted Hughes is about the journey of an idea in the mind to the verses on the paper. The poet imagines the idea in the form of a creature which is a fox, a thought fox. The thought fox starts getting closer to the poet or his imaginations.
In the beginning only its nose is visible, then its two eyes can be seen. As the fox moves towards the poet or in other word as the creative idea gets closer to the poet’s mind, it gets wider and deeper. The two eyes of the thought fox become one.
Ultimately, the fox or the idea enters the dark hole of the head i.e. it comes to the mind of the poet which he writes on the paper. This type of poem is known as Metafiction.Read the summary of the poem here.